<template>
    <div>
        <!--面包屑-->
        <el-breadcrumb separator-class="el-icon-arrow-right">
          <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
          <el-breadcrumb-item>数据统计</el-breadcrumb-item>
          <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <!---卡片视图---->
        <el-card>
            <!-- 为 ECharts 准备一个具备大小（宽高）的 DOM -->
            <div id="main" style="width: 800px;height:400px;"></div>
        </el-card>
    </div>
</template>
<script>
import echarts from 'echarts'
import _ from 'lodash'
    export default{
        data(){
            return{
                options: {
                      title: {
                        text: '用户来源'
                      },
                      tooltip: {
                        trigger: 'axis',
                        axisPointer: {
                          type: 'cross',
                          label: {
                            backgroundColor: '#E9EEF3'
                          }
                        }
                      },
                      grid: {
                        left: '3%',
                        right: '4%',
                        bottom: '3%',
                        containLabel: true
                      },
                      xAxis: [
                        {
                          boundaryGap: false
                        }
                      ],
                      yAxis: [
                        {
                          type: 'value'
                        }
                      ]
                    }
                }
        },
        created(){
            
        },
        //此时，页面上的元素已经被渲染完毕了
        async mounted(){
              
              // 基于准备好的dom，初始化echarts实例
              var myChart = echarts.init(document.getElementById('main'));

              const {data:res}=await this.$http.get('reports/type/1')
              if(res.meta.status !== 200){
                  return this.$message.error('获取数据失败')
              }
              this.$message.success('获取数据成功')



              // 指定图表的配置项和数据
              /**
              var option = {
                  title: {
                      text: 'ECharts 入门示例'
                  },
                  tooltip: {},
                  legend: {
                      data:['销量']
                  },
                  xAxis: {
                      data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
                  },
                  yAxis: {},
                  series: [{
                      name: '销量',
                      type: 'bar',
                      data: [5, 20, 36, 10, 10, 20]
                  }]
              }; **/
              const result = _.merge(res.data,this.options)
              // 使用刚指定的配置项和数据显示图表。
              myChart.setOption(result);
        },
        methods:{

        }
    }
</script>
<style lang="less" scoped>
</style>